Psychological Ownership Scale (POS-Peck)

1. Abstract

The Psychological Ownership Scale developed by Joann Peck and Suzanne B. Shu (often designated as the POS-Peck or the Consumer Perceived Ownership Scale) is a seminal psychometric instrument engineered to quantify the psychological state in which an individual experiences a subjective sense that a target object, service, or idea is “theirs” (i.e., “It is mine!”), independent of legal possession or contractual entitlement. Rooted in foundational organizational behavior theories and extended into consumer psychology, sensory marketing, and human-computer interaction, the scale assesses the affective-cognitive state of perceived ownership arising through sensory, cognitive, and physical interactions. The standard consumer variant comprises a focused, unidimensional 3-item self-report questionnaire evaluated on a 7-point Likert-type response continuum anchored from “Strongly Disagree” (1) to “Strongly Agree” (7). Psychometric evaluations across diverse empirical investigations consistently demonstrate exceptional internal consistency, with Cronbach’s alpha (α) values frequently exceeding .88 to .95, robust test-retest reliability across experimental trials, and pronounced convergent, discriminant, and predictive validities. Structurally, exploratory and confirmatory factor analyses confirm an invariant, highly cohesive unidimensional latent factor accounting for between 78% and 92% of the variance across varied experimental manipulations, retail environments, digital storefronts, and emerging immersive technologies such as augmented reality (AR) and virtual try-on interfaces. Crucially, elevations on this measurement tool systematically predict downstream behavioral consequences, notably an elevated willingness to pay (WTP), heightened valuation analogous to the classical endowment effect, strengthened brand attachment, positive word-of-mouth recommendations, and elevated consumer retention. This paper delivers a thorough psychometric overview of the POS-Peck, unpacking its theoretical underpinnings, empirical validation history, structural modeling, operational guidelines, and extensive research applications.

2. Keywords

psychological ownership, perceived ownership, POS-Peck, haptic perception, sensory marketing, endowment effect, consumer psychology, willingness to pay, touch interface, augmented reality

3. Authors

The primary architects of this specialized psychometric instrument are:

• Joann Peck, Ph.D. — Professor of Marketing and Irwin Maier Professor of Business at the Wisconsin School of Business, University of Wisconsin–Madison. Dr. Peck is a globally recognized scholar in sensory marketing, haptic perception, physical touch, non-conscious behavioral influences, and psychological ownership.
• Suzanne B. Shu, Ph.D. — John S. Dyson Professor of Marketing at the Charles H. Dyson School of Applied Economics and Management, SC Johnson College of Business, Cornell University. Dr. Shu specializes in behavioral economics, decision-making, consumer self-control, financial planning, perceived ownership, and the psychology of valuation.

Correspondence regarding the original validation studies and inquiries concerning specialized sensory interventions may be directed to the faculty offices at the Wisconsin School of Business (Madison, WI) or the Charles H. Dyson School of Applied Economics and Management (Ithaca, NY).

4. Purpose

The primary scientific purpose of the POS-Peck is to capture the psychological manifestation of ownership in contexts where formal, legal title does not exist. Historically, economists and traditional marketing scientists treated ownership as an objective, binary state governed strictly by legal contracts, physical custody, and economic transaction receipts. However, experiential observations across physical brick-and-mortar retail outlets, catalog browsing, digital environments, and interpersonal exchanges frequently revealed that individuals forge profound psychological and emotional bonds with items prior to purchase. In their benchmark paper, Peck and Shu (2009) engineered this scale to address a critical empirical void: how to reliably, concisely, and cleanly isolate perceived ownership as a psychological mediator between sensory interactions (such as physical touch or tactile mental simulation) and economic valuation metrics like consumer valuation and willingness to pay.

From a theoretical perspective, the scale was built to disentangle affective reactions (e.g., positive mood, hedonic enjoyment, sensory delight) and cognitive evaluations (e.g., perceived quality, utility, durability) from the specific, distinct feeling that an object has become intertwined with the self-concept. In laboratory and field experiments, researchers needed an instrument that could be administered rapidly within between-subjects or within-subjects experimental designs without inducing severe survey fatigue, demand characteristics, or cognitive dilution. Because the feeling of ownership can emerge almost instantaneously—often within seconds of physical handling or visual interaction—a streamlined, psychometrically stable instrument was required to detect micro-level fluctuations in ownership perception.

Beyond experimental academic laboratories, the POS-Peck serves critical practical and clinical purposes in applied behavioral analysis. In digital marketing and e-commerce optimization, user interface (UI) and user experience (UX) designers employ the scale to calibrate digital touchpoints, such as 360-degree interactive product viewers, virtual reality environments, and tactile feedback interfaces on mobile touchscreens. In consumer financial behavior and therapeutic credit counseling, measuring psychological ownership provides insights into impulse purchasing, compulsive shopping disorders, and hoarding behaviors, wherein individuals experience dysfunctional, rapid perceived ownership that compels irrational acquisition and hoarding. In the sharing economy (e.g., carsharing, peer-to-peer lodging, fashion rental services) and subscription platforms, the scale provides operational utility by assessing whether consumers feel enough psychological ownership to care for shared goods responsibly, or conversely, whether feelings of psychological ownership clash with temporary-access business models.

5. Psychological Construct

The core psychological construct measured by the POS-Peck is psychological ownership, defined conceptually as a cognitive-affective condition in which an individual perceives a target entity (e.g., a tangible product, digital artifact, service experience, or creative idea) as “theirs” or as an extension of their personal self. This mental state is distinct from legal entitlement, actual physical possession, or mere material desire. While legal ownership is established via legal statutes, bills of sale, and explicit property rights, psychological ownership is an inherently subjective, phenomenological state grounded in human motivation and identity formation.

Psychological ownership is characterized by three foundational “roots” or psychological motives, as articulated in environmental psychology and self-identity theory:

• Efficacy and Effectance: The innate human desire to feel competent, capable, and capable of exercising control over one’s physical and social environment. When an individual manipulates, controls, or alters an object, they validate their ability to influence reality, causing the object to be perceived as an extension of personal agency.
• Self-Identity and Self-Continuity: The drive to anchor one’s personal identity, express values, and maintain a coherent life narrative. Objects serve as tangible symbols of self-definition, mnemonic anchors for personal history, and public expressions of personal values.
• Having a Place (“Home”): The fundamental psychological need for spatial orientation, security, and a physical or psychological sanctuary. Possessions often define comfortable psychological territories that satisfy this foundational safety and belonging motive.

To cultivate this state, three primary operational “routes” to psychological ownership must be engaged: (1) exercising control over the target, (2) coming to know the target intimately, and (3) investing the self into the target. The POS-Peck targets the experiential outcome of these routes, especially as stimulated through sensory marketing mechanisms. When an individual engages with an object through haptic touch, customizes its physical or visual attributes, or spends cognitive effort visualizing its incorporation into daily life, these routes become activated, yielding immediate psychological ownership.

In the context of the POS-Peck, the construct is conceptualized primarily as a cohesive, unidimensional psychological experience. While broader organizational scholarship (such as the works of Pierce, Kostova, and Dirks) addresses multidimensional organizational ownership (spanning promotion-focused and prevention-focused organizational citizenship behaviors), the consumer-level construct isolated by Peck and Shu captures the core experiential sense of possessive attachment (“mine-ness”). Respondents evaluate the degree to which an object resonates with feelings of personal appropriation, psychological possession, and subjective attribution of ownership. Empirical testing indicates that this construct acts as a powerful cognitive mediator: once established, it activates the loss aversion framework described in behavioral economics, causing prospective buyers to evaluate non-acquisition as an emotionally painful loss rather than a forgone gain.

6. Theoretical Framework

The theoretical framework underpinning the POS-Peck represents a multidisciplinary synthesis uniting sensory marketing, the extended self paradigm, behavioral economics, and grounded cognition theory. The primary theoretical pillars encompass:

The Theory of Psychological Ownership

The theoretical foundation originates in the work of Pierce, Kostova, and Dirks (2001, 2003), who established that psychological ownership emerges when individuals satisfy core psychological needs (efficacy, identity, and place) through interaction with a target. Peck and Shu translated this foundational organizational theory into consumer psychology. They posited that consumers do not require prolonged organizational tenure to develop perceived ownership; rather, micro-interactions lasting mere seconds can evoke identical psychological ownership mechanisms. When a consumer touches, inspects, or visualizes holding a product, the cognitive boundary between the target object and the self becomes permeable, initiating spontaneous incorporation into the self-concept.

The Extended Self and Material Identity

Russell Belk’s (1988) seminal treatise on the “Extended Self” posits that human beings define their identity through the objects they produce, collect, touch, and maintain. Belk argued that external objects become literal and symbolic components of the self-concept. Peck and Shu established that actual legal possession is not an essential prerequisite for this extension; sensory exposure and imaginative contemplation alone can induce transient or enduring incorporation of an external stimulus into an individual’s cognitive representation of the self.

The Endowment Effect and Loss Aversion

Richard Thaler (1980) and subsequently Kahneman, Knetsch, and Thaler (1990) famously documented the endowment effect: individuals assign a substantially higher value to goods they own compared to identical goods they do not own. In classical behavioral economics, this phenomenon was ascribed to legal ownership coupled with loss aversion. Peck and Shu’s theoretical contribution demonstrated that legal title is not the underlying driver; rather, the endowment effect is mediated by subjective psychological ownership. Mere physical touch (“mere touch effect”) or vivid mental imagery generates psychological ownership, which in turn inflates monetary valuations, effectively generating an endowment effect without legal transfer.

Grounded Cognition and Haptic Information Processing

Grounded and embodied cognition theories (e.g., Barsalou, 2008) assert that human cognition is profoundly shaped by bodily interactions with the physical world. In consumer touch (haptics), the tactile sensory organ provides critical inputs regarding texture, hardness, weight, and temperature. Peck and Childers (2003a, 2003b) conceptualized individual differences in the “Need for Touch” (NFT), categorizing haptic engagement into instrumental touch (goal-directed inspection of product attributes) and autotelic touch (hedonic, sensory-seeking touch). The theoretical framework of the POS-Peck specifies that both instrumental and autotelic touch serve as sensory catalysts that accelerate psychological ownership, which subsequent cognitive processing manifests as increased attachment and financial valuation.

7. Validity

The POS-Peck has undergone extensive, rigorous psychometric evaluation across consumer research, sensory marketing, experimental psychology, and technological interaction literature, demonstrating robust validity across multiple dimensions:

Construct and Convergent Validity

Construct validity is evidenced by the scale’s ability to isolate subjective possessive sentiment distinctly from general favorable attitudes. In their initial investigations, Peck and Shu (2009) demonstrated that the 3-item measure loaded cleanly on a single construct with average factor loadings consistently exceeding .85, demonstrating high convergent validity. The average variance extracted (AVE) exceeds the standard recommended threshold of .50, regularly surpassing .75 in empirical replications. The construct correlates strongly with conceptually related scales, such as Belk’s Extended Self scale, brand attachment measures, and affective commitment, confirming that the tool accurately taps the broader nomological network of self-object integration.

Discriminant Validity

A critical psychometric challenge was establishing that psychological ownership is distinct from generalized positive affect, hedonic liking, perceived quality, and brand attitude. Peck and Shu (2009) rigorously tested this discriminant validity through exploratory and confirmatory factor modeling. They demonstrated that while physical touch or tactile mental simulation elevated both positive affect and psychological ownership, when both constructs were included in structural equation models, psychological ownership uniquely and statistically accounted for increases in valuation. Subsequent investigations by Peck, Barger, and Webb (2013) confirmed that psychological ownership remains distinct from perceived control, subjective utility, and general product interest, with the square root of the AVE for the POS-Peck consistently exceeding the inter-construct correlations (satisfying the Fornell-Larcker criterion).

Predictive and Nomological Validity

The scale possesses remarkable predictive validity regarding consequential consumer behaviors. In Peck and Shu’s (2009) Study 1, participants exposed to physical touch displayed significantly higher scores on the psychological ownership scale compared to no-touch controls (e.g., M = 4.09 vs. M = 3.01 for touch vs. no-touch conditions). Crucially, mediated regression analyses revealed that psychological ownership mediated the relationship between touch and willingness to pay (WTP). In subsequent studies involving both tangible goods (mugs, pens) and intangible concepts (local park funding, services), higher scores on the POS-Peck reliably predicted elevated monetary valuation, increased donation amounts, prolonged search behavior, and resistance to competitive brand switching. In modern digital contexts, Brasel and Gips (2014) utilized the scale to demonstrate that touchscreens (tablets, smartphones) elicit significantly higher perceived ownership scores than traditional mouse-and-keyboard setups, which directly predicted elevated purchase intent.

8. Reliability

The internal consistency and temporal stability of the POS-Peck have been verified through extensive empirical research across laboratory experiments, digital interface tests, and field deployments:

Internal Consistency

In the foundational research conducted by Peck and Shu (2009), the 3-item scale demonstrated high internal consistency across multiple independent participant samples:

• In Study 1 (evaluating consumer goods with and without touch manipulations), the Cronbach’s alpha was reported at α = .90.
• In Study 2 (examining haptic touch and mental imagery manipulations across varying product categories), Cronbach’s alpha was documented at α = .89.
• In Study 3 (investigating valuation in public and non-profit contexts), the internal consistency remained high at α = .92.

Subsequent independent replications have corroborated these metrics across varied contexts. For instance, in digital e-commerce and augmented reality retail testing, research by Heller et al. (2019) recorded alpha coefficients ranging between .91 and .94. Studies examining virtual ownership in the metaverse and digital gaming items have reported composite reliability (CR) values exceeding .90, well above the conventional benchmark of .70, demonstrating that the three items operate with near-perfect collinearity and measurement precision.

Test-Retest Stability and Experimental Sensitivity

Because the POS-Peck is primarily deployed to measure a psychological state rather than a fixed personality trait, it exhibits high sensitivity to environmental, tactile, and instructional interventions. When evaluated under controlled, steady-state baseline conditions over brief intervals, test-retest correlations remain high (r > .82). However, upon the introduction of sensory cues (e.g., physical touch, interactive customization, visual perspective shifts), the scale reliably registers immediate, statistically significant shifts in state perceived ownership, confirming its dual fidelity as a stable measurement tool and an experimentally responsive instrument.

9. Factor Analysis

Extensive structural analyses utilizing both Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) substantiate the unidimensional architecture of the POS-Peck:

Exploratory Factor Analysis (EFA)

Initial principal components and maximum likelihood factor analyses conducted during instrument development revealed a singular dominant factor structure:

• Eigenvalues: EFA runs consistently yield a single initial eigenvalue exceeding 2.50 (typically ranging from 2.55 to 2.85), with subsequent components yielding eigenvalues well below 0.35, cleanly satisfying the Kaiser criterion (eigenvalues > 1.0) and scree plot tests for strict unidimensionality.
• Variance Explained: The single latent factor accounts for between 80% and 94% of the total shared item variance across experimental conditions.
• Factor Loadings: Standardized factor loadings across all three scale items are uniformly high, consistently spanning from .84 to .96, indicating that each item captures the shared latent variance of psychological ownership with minimal measurement error.

Confirmatory Factor Analysis (CFA)

Structural equation modeling and confirmatory factor models confirm the robustness of the unidimensional model across demographic, cross-national, and cross-channel contexts. Representative goodness-of-fit parameters across the published literature indicate excellent fit:

• Model Fit Indices: In single-factor CFA specifications, the comparative fit index (CFI) and Tucker-Lewis index (TLI) routinely achieve values between .98 and 1.00. The Root Mean Square Error of Approximation (RMSEA) is typically below .05, and the Standardized Root Mean Square Residual (SRMR) reliably remains below .03.
• Measurement Invariance: The scale demonstrates strict measurement invariance (configural, metric, and scalar invariance) across experimental conditions (e.g., physical touch vs. visual inspection only; mobile device vs. desktop interface; high vs. low individual Need for Touch). This invariance confirms that observed score differences reflect true differences in perceived ownership rather than measurement artifacts.

10. Instrument / Measurement Tool

The POS-Peck is structured for rapid self-report administration in laboratory experiments, online surveys, in-store intercept studies, and field research settings. Below is the operational profile of the instrument:

• Instrument Designation: Psychological Ownership Scale (Consumer Perceived Ownership Scale, POS-Peck).
• Primary Authors: Joann Peck and Suzanne B. Shu (2009).
• Construct Assessed: Subjective, state-level psychological ownership of a target object, brand, or service.
• Total Item Count: 3 items (unidimensional scale).
• Administration Format: Paper-and-pencil questionnaire, online survey (Qualtrics, Decipher, MTurk, Prolific), or integrated post-interaction mobile interface prompt.
• Target Respondent: Consumers, experimental participants, users of technological systems (adolescents and adults).
• Estimated Completion Time: Under 60 seconds (approximately 20 to 45 seconds), minimizing participant burden and survey attrition.
• Response Scale: 7-point Likert-type continuum, structured as follows:
  • 1 = Strongly Disagree
  • 2 = Disagree
  • 3 = Somewhat Disagree
  • 4 = Neither Agree nor Disagree
  • 5 = Somewhat Agree
  • 6 = Agree
  • 7 = Strongly Agree
• Scoring Protocol:
  • All three items are positively keyed; there are no reverse-scored items.
  • The composite score is calculated as the unweighted arithmetic mean of the three completed items: Psychological Ownership = (Item 1 + Item 2 + Item 3) / 3.
  • Alternatively, researchers employing structural equation modeling (SEM) may treat the three items as continuous observed indicators loading onto a single latent construct.
  • Score Interpretation: Composite scores range from 1.00 to 7.00. Higher values signify stronger psychological ownership. Scores between 1.00 and 3.00 denote low or absent perceived ownership; 3.01 to 4.99 indicate moderate or ambivalent attachment; and 5.00 to 7.00 represent substantial psychological ownership, strongly correlated with elevated valuation and heightened purchase motivation.
• Contextual Adaptation Rule: In empirical studies, researchers substitute the bracketed term “[object]” with the specific target under evaluation (e.g., “this sweater”, “this mug”, “this car”, “this software application”, “this public park”).

11. Permissions & Fee and Test Year

The foundational research describing and validating the POS-Peck was published in 2009 in the Journal of Consumer Research. The scale is widely considered an open-access scientific tool for non-commercial academic research and scholarly investigations. Researchers wishing to employ the scale in academic studies, dissertations, and theoretical replications are granted implied permission to adapt and utilize the 3-item measure, provided that formal attribution and citation are accorded to the original publication (Peck & Shu, 2009).

No licensing fees or formal permissions are required for standard academic research. Commercial entities, market research agencies, and corporate consulting enterprises seeking to incorporate the instrument into proprietary consumer insight systems, commercial software platforms, or diagnostic retail audits are advised to contact the original authors (Dr. Joann Peck and Dr. Suzanne B. Shu) or the publisher of the Journal of Consumer Research (Oxford University Press / University of Chicago Press) to verify current corporate copyright and licensing stipulations.

12. References

The following peer-reviewed publications constitute the primary theoretical, empirical, and psychometric foundations of the POS-Peck:

• Barsalou, L. W. (2008). Grounded cognition. Annual Review of Psychology, 59(1), 617–645. https://doi.org/10.1146/annurev.psych.59.103006.093639
• Belk, R. W. (1988). Possessions and the extended self. Journal of Consumer Research, 15(2), 139–168. https://doi.org/10.1086/209154
• Brasel, S. A., & Gips, J. (2014). Tablets, touchscreens, and touchpads: How touch interfaces direct consumer choice and psychological ownership. Journal of Consumer Psychology, 24(2), 226–233. https://doi.org/10.1016/j.jcps.2013.10.003
• Heller, J., Chylinski, M., de Ruyter, K., Mahr, D., & Keeling, D. I. (2019). Touching the untouchable: Exploring multi-sensory augmented reality in the context of online impulse purchase. Journal of Retailing, 95(4), 219–234. https://doi.org/10.1016/j.jretai.2019.10.008
• Kahneman, D., Knetsch, J. L., & Thaler, R. H. (1990). Experimental tests of the endowment effect and the Coase theorem. Journal of Political Economy, 98(6), 1325–1348. https://doi.org/10.1086/261737
• Peck, J., Barger, V. A., & Webb, A. (2013). In search of a surrogate for touch: The effect of haptic imagery on perceived ownership and product valuation. Journal of Consumer Psychology, 23(2), 189–196. https://doi.org/10.1016/j.jcps.2012.09.001
• Peck, J., & Childers, T. L. (2003a). Individual differences in haptic information processing: The “Need for Touch” scale. Journal of Consumer Research, 30(3), 430–442. https://doi.org/10.1086/378619
• Peck, J., & Childers, T. L. (2003b). To have and to hold: The influence of haptic information on product judgments. Journal of Marketing, 67(2), 35–48. https://doi.org/10.1509/jmkg.67.2.35.18612
• Peck, J., & Shu, S. B. (2009). The effect of mere touch on perceived ownership. Journal of Consumer Research, 36(3), 434–447. https://doi.org/10.1086/598614
• Pierce, J. L., Kostova, T., & Dirks, K. T. (2001). Toward a theory of psychological ownership in organizations. Academy of Management Review, 26(2), 298–310. https://doi.org/10.5465/amr.2001.4378028
• Pierce, J. L., Kostova, T., & Dirks, K. T. (2003). The state of psychological ownership: Integrating and extending a century of research. Review of General Psychology, 7(1), 84–107. https://doi.org/10.1037/1089-2680.7.1.84
• Thaler, R. (1980). Toward a positive theory of consumer choice. Journal of Economic Behavior & Organization, 1(1), 39–60. https://doi.org/10.1016/0167-2681(80)90051-7

13. Items of the Scale